/*
  Name: 
  Copyright: 
  Author: 
  Date: 20/11/10 14:01
  Description: 
*/


#include <assert.h>
#include <iostream>

using namespace std;

//Function

char skipta(char XY)
     {
          if(XY == 'X')
          {
              XY = 'Y';
          } 
          else XY = 'X';
          
          return XY;     
     }
     

//main function

int main()
{
char XY = 'X';
//cout << "insert your move : ";
	//cin >> radius;
assert(skipta('X') !='X');
assert(skipta('X') == NULL);
assert(skipta('X') =='Y');
assert(skipta('Y') =='X');
return 0;
}
